No one can tell you what is best for you except YOU!

Going back on medications is very broad. There are many types of medication. Do you know what types you have been on before?

Therapy is mostly work done on your part. I think it would help you to become more involved in the therapeutic process. You can start with asking what type of therapy he uses. I'm not your pdoc but most studies show individuals with psychosis should not receive insight oriented psychology.

I won't bore you with the Pharmacology but if you are that sensitive to medication then you should be tested for drug allergies. It would be odd for you to have adverse affects with 5 different types of medications. The FDA kind of lumps SSRI's, Atypical Anti-Psychotics and Typical Anti-Psychotics into groups like they all do the same thing. Each one (especially anti-psychotics) are all very different.

If you feel like your therapist is insensitive and not connecting with you; then try to find another one. I'd really recommend consulting a psychiatrist so they can do necessary medical testing and then move from there.

Remember in most countries as long as you do not present a danger to yourself or others the route of therapy is your choice. Medication therapy is very popular and fits with the norms of our culture. However It's my personal opinion that other types of targeted therapy can be far more effective when used with or without medication therapy.